• Ownership of Starfinder Player Core is not required for Character Option use in the Starfinder Society campaign, as long as rules are referenced from the official Starfinder Resource Document (sfrd).

Starfinder Society scenarios contain new character options on their chronicle sheets. To use options from a chronicle sheet, players must have completed the adventure as a player or GM and assigned that chronicle to their character. Depending on the adventure, new character options may be made available either to the character with the chronicle sheet, or all of a player's characters. Players are not required to own a Starfinder Society scenario to use these options; the chronicle sheet satisfies any ownership requirements.

As a general rule, the use of Pathfinder content in Starfinder Society is not permitted. There are currently two exceptions to this rule:

• Boons in the Boon Store may allow players to use Pathfinder content, such as ancestries or monsters. In this case, the specific permission granted by these boons overrides this general rule.
• Some Starfinder character options, such as the Golarion Survivor human heritage, allow players to select options from Pathfinder books. In this case, players may only select options from the Core Sources for Pathfinder Society (currently Pathfinder Player Core, GM Core, Monster Core and Player Core 2), and must follow all restrictions as outlined on the Pathfinder Society Character Options page.

Note that in both of these cases, Pathfinder books are not core sources for the Starfinder Society campaign, so players must own a copy of these books when using these options.

To use an option from any source other than Starfinder Player Core or a Starfinder Society scenario, you must bring one of the following to your game table:

• A physical copy of the book you wish to use
• A name-watermarked PDF copy of the book
• Name-watermarked printouts of all relevant pages you wish to use from the PDF
• Access to the rules you wish to use in the form of either electronic access to the Starfinder Reference Document (paizo.com/sfrd) or a photocopy of the relevant pages; along with proof of purchase, such as a receipt from a game store or a screenshot of your My Downloads page on paizo.com. 

The following do not satisfy this requirement:

• A photocopy of a physical book with no proof of purchase
• Printouts from electronic character builders such as Hero Lab
• Content reproduced in other sources under the Open Roleplaying Content License (ORC License), such as an online reference document or a homemade omnibus 

In addition to the copy of the rules themselves, you must be able to provide a digital or physical copy of the below Character Options page for that source to show that the options you have selected for your character are legal for play.

Family members, significant others, or other members of the same household (such as roommates) can share resources if they are playing at the same table, rather than requiring a separate copy of the same book for each person. A group of friends that always plays together at the same table fulfills this requirement, as long as all the necessary materials for each character's options are present. Members playing at separate tables must each supply their own materials as normal.